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/* WARNING: auto-generated (by autogen/cli); do not edit */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include "lib25519.h" /* -l25519 */
#include "limits.inc"
static void die_temp(const char *why,const char *why2)
{
if (why2)
fprintf(stderr,"x25519-dh: fatal: %s: %s\n",why,why2);
else
fprintf(stderr,"x25519-dh: fatal: %s\n",why);
exit(111);
}
static unsigned char sharedsecret[lib25519_dh_BYTES];
static unsigned char bobpublic[lib25519_dh_PUBLICKEYBYTES];
static unsigned char alicesecret[lib25519_dh_SECRETKEYBYTES];
int main()
{
FILE *bobpublicfile;
FILE *alicesecretfile;
FILE *sharedsecretfile;
limits();
bobpublicfile = fdopen(4,"r");
if (!bobpublicfile) {
fprintf(stderr,"x25519-dh: usage: x25519-dh 8<alicesecret 4<bobpublic 7>sharedsecret\n");
die_temp("fdopen 4 failed",strerror(errno));
}
alicesecretfile = fdopen(8,"r");
if (!alicesecretfile) {
fprintf(stderr,"x25519-dh: usage: x25519-dh 8<alicesecret 4<bobpublic 7>sharedsecret\n");
die_temp("fdopen 8 failed",strerror(errno));
}
sharedsecretfile = fdopen(7,"w");
if (!sharedsecretfile) {
fprintf(stderr,"x25519-dh: usage: x25519-dh 8<alicesecret 4<bobpublic 7>sharedsecret\n");
die_temp("fdopen 7 failed",strerror(errno));
}
if (fread(alicesecret,1,sizeof alicesecret,alicesecretfile) < sizeof alicesecret) {
if (ferror(alicesecretfile))
die_temp("read alicesecret failed",strerror(errno));
die_temp("read alicesecret failed","end of file");
}
fclose(alicesecretfile);
if (fread(bobpublic,1,sizeof bobpublic,bobpublicfile) < sizeof bobpublic) {
if (ferror(bobpublicfile))
die_temp("read bobpublic failed",strerror(errno));
die_temp("read bobpublic failed","end of file");
}
fclose(bobpublicfile);
lib25519_dh(sharedsecret,bobpublic,alicesecret);
if (fwrite(sharedsecret,1,sizeof sharedsecret,sharedsecretfile) < sizeof sharedsecret)
die_temp("write sharedsecret failed",strerror(errno));
if (fflush(sharedsecretfile))
die_temp("write sharedsecret failed",strerror(errno));
fclose(sharedsecretfile);
return 0;
}
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